“Dead Accounts” star Judy Greer says of working with Katie Holmes, “I’ve just been impressed by her work ethic . . . and her ability . . . to juggle being an awesome mom. I mean, she’s always like, ‘I went to Suri’s class this morning, I was reading to the first-graders.’ And I’m like . . . ‘I can barely schedule in a workout and getting to rehearsal, and I’m just here by myself in an apartment.’ ” Greer also tells Vanity Fair that Holmes “works out every day, she’s cooking dinner at night . . . she manages to go and get [Suri] a new dress if she has a special thing [and is] going to her lessons after school.” But Greer hints at Katie’s secret: “I’ve rarely seen her without a giant cup of coffee . . . I will say that.” She adds of any bonding during intermission, “I should say we all light candles and we gather around and say a prayer . . . to the theater gods. No, it’s usually so we can pee.”